The Simport M920-2 slide staining tray holds solution for staining up to 20 slides and is intended for use with 25 x 75mm (1 x 3") microscope slides (sold separately). The tray and lid are made of ABS plastic for corrosion resistance and durability and the lid is black for protection from light. Raised rails hold slides above the staining solution to dry. The tray has an operating temperature of -80 to +80 degrees C. The slide staining tray is suitable for staining tissue samples in a variety of histology, pathology, and cytology applications.Simport Scientific manufactures disposable plastic labware. The company, founded in 1975, is headquartered in Beloeil, Quebec.